/usr/include/astrometry/quad-builder.h is in libastrometry-dev 0.73+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 | /*
# This file is part of the Astrometry.net suite.
# Licensed under a 3-clause BSD style license - see LICENSE
*/
#ifndef QUAD_BUILDER_H
#define QUAD_BUILDER_H
#include "astrometry/an-bool.h"
struct potential_quad {
double midAB[3];
double Ax, Ay;
double costheta, sintheta;
int iA, iB;
int staridA, staridB;
int* inbox;
int ninbox;
anbool scale_ok;
// user-defined check passed?
anbool check_ok;
};
typedef struct potential_quad pquad_t;
struct quadbuilder;
typedef struct quadbuilder quadbuilder_t;
struct quadbuilder {
// FIXME -- could replace this with a function to get xyz for a given index
// (eg, using starkd)
double* starxyz;
// Indices into a (presumed) larger array. Ie, it's expected that you're
// cutting down to a subset of the stars, in "starxyz", whose indices are in
// "starinds", and the number of which is "Nstars".
// (thus "starinds" has length "Nstars" but its contents can be > Nstars)
int* starinds;
int Nstars;
int dimquads;
// scale limits, in diameter-squared on the unit sphere
double quadd2_low;
double quadd2_high;
// enable scale checks?
anbool check_scale_low;
anbool check_scale_high;
// FIXME -- could add a method to find potential B stars given an A star.
// (eg, allquads)
// called to check whether a choice of stars A,B is acceptable.
anbool (*check_AB_stars)(quadbuilder_t* qb, pquad_t* pq, void* token);
void* check_AB_stars_token;
// called when the third, fourth, ... stars are added.
anbool (*check_partial_quad)(quadbuilder_t* qb, unsigned int* quad, int nstars, void* token);
void* check_partial_quad_token;
// called when all the stars have been added.
anbool (*check_full_quad)(quadbuilder_t* qb, unsigned int* quad, int nstars, void* token);
void* check_full_quad_token;
// called to decide which of the given stars are accetable.
// must compact the acceptable star indices into the bottom of the "sC" array and
// return the new number of acceptable stars.
int (*check_internal_stars)(quadbuilder_t* qb, int sA, int sB, int* sC, int NC, void* token);
void* check_internal_stars_token;
// called when an acceptable quad has been found.
void (*add_quad)(quadbuilder_t* qb, unsigned int* stars, void* token);
void* add_quad_token;
// set this to stop a qb_create() call.
anbool stop_creating;
//
int nbadscale;
// internal:
int Ncq;
void* pquads;
//pquad_t* pquads;
int* inbox;
};
int quadbuilder_create(quadbuilder_t* qb);
quadbuilder_t* quadbuilder_init();
void quadbuilder_free(quadbuilder_t* qb);
//void quadbuilder_free_static();
#endif
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